External cavity tunable laser with an air gap etalon comprising wedges
    1.
    发明授权
    External cavity tunable laser with an air gap etalon comprising wedges 有权
    具有包括楔形件的气隙标准具的外部可调谐激光器

    公开(公告)号:US08929409B2

    公开(公告)日:2015-01-06

    申请号:US12747674

    申请日:2008-12-22

    摘要: A tunable narrow linewidth laser is provided, wherein an adjustable etalon structure is employed to simultaneously tune the wavelength of the laser transmission and the length of the laser cavity. The etalon structure is an effective, relatively thick shear plate comprised of transparent matched wedge-shaped substrates and a pair of parallel, partially transmissive mirrors with a space therebetween. Rotation of the etalon structure relative to the laser input changes the angle of incidence to the first substrate and the etalon angle, thereby changing the wavelength of the laser light and also changing the length of the external laser cavity. Thus, reliable frequency tuning is achieved, without mode hopping.

    摘要翻译: 提供了可调谐的窄线宽激光器,其中采用可调标准具结构来同时调谐激光传输的波长和激光腔的长度。 标准具结构是一种有效的,相对较厚的剪切板,其包括透明匹配的楔形基板和一对平行的,部分透射的反射镜,其间具有空间。 标准具结构相对于激光输入的旋转改变了与第一衬底的入射角和标准角,从而改变了激光的波长,并且改变了外部激光腔的长度。 因此,可实现可靠的频率调谐,无需跳频。